Multiple vulnerabilities in the WebKitGTK web engine, including Same Origin Policy bypasses, sandbox escapes, and cross-site scripting, can be exploited via malicious web content. The Debian Security Advisory DSA-6232-1 addresses these issues for the stable distribution (trixie) in webkit2gtk version 2.52.1-1~deb13u1. Notably, the oldstable distribution (bookworm) no longer receives security updates for this package due to backporting limitations.
[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index] [SECURITY] [DSA 6232-1] webkit2gtk security update To: debian-security-announce@lists.debian.org Subject: [SECURITY] [DSA 6232-1] webkit2gtk security update From: Alberto Garcia <berto@debian.org> Date: Tue, 28 Apr 2026 08:00:06 +0000 Message-id: <[🔎] afBpBqK2QtUCF12o@seger.debian.org> Reply-to: debian-security-announce-request@lists.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6232-1 security@debian.org https://www.debian.org/security/ Alberto Garcia April 28, 2026 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : webkit2gtk CVE ID : CVE-2025-46299 CVE-2026-20643 CVE-2026-20664 CVE-2026-20665 CVE-2026-20691 CVE-2026-28857 CVE-2026-28859 CVE-2026-28861 CVE-2026-28871 The following vulnerabilities have been discovered in the WebKitGTK web engine: CVE-2025-46299 Google Big Sleep discovered that processing maliciously crafted web content may disclose internal states of the app. CVE-2026-20643 Thomas Espach discovered that processing maliciously crafted web content may bypass Same Origin Policy. CVE-2026-20664 Daniel Rhea, Soehnke Benedikt Fischedick, Emrovsky & Switch, and Yevhen Pervushyn discovered that processing maliciously crafted web content may lead to an unexpected process crash CVE-2026-20665 webb discovered that processing maliciously crafted web content may prevent Content Security Policy from being enforced. CVE-2026-20691 Gongyu Ma discovered that a maliciously crafted webpage may be able to fingerprint the user. CVE-2026-28857 Narcis Oliveras Fontas, Soehnke Benedikt Fischedick, Daniel Rhea, and Nathaniel Oh discovered that processing maliciously crafted web content may lead to an unexpected process crash. CVE-2026-28859 greenbynox and Arni Hardarson discovered that a malicious website may be able to process restricted web content outside the sandbox. CVE-2026-28861 Hongze Wu and Shuaike Dong discovered that a malicious website may be able to access script message handlers intended for other origins. CVE-2026-28871 @hamayanhamayan discovered that visiting a maliciously crafted website may lead to a cross- site scripting attack. Starting from version 2.52.0, WebKitGTK can no longer be backported to the oldstable distribution (bookworm). Because of that, the webkit2gtk packages are no longer covered by security support in bookworm. For the stable distribution (trixie), these problems have been fixed in version 2.52.1-1~deb13u1. We recommend that you upgrade your webkit2gtk packages. For the detailed security status of webkit2gtk please refer to its security tracker page at: https://security-tracker.debian.org/tracker/webkit2gtk Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEYrwugQBKzlHMYFizAAyEYu0C2AIFAmnwaBYACgkQAAyEYu0C 2AL64xAAnAPaZKfiy/lAfopeAUAvbUJNBki4NY+pRud5Ed07dO8o0k8HMebB9tdr uX9DJ+VvTaFF1h6V4SRJAN4FbFcIo9QZvZf+fUmhjoA6vr8FGqFylHGImh/imvW/ kNNyZQaIH3orfvOKPxibAPRQEh2A1coyjI9MHCGzK4mRvPj3MOKPqq7zviQaW6CM f8GT+iKZVsrPChmh5dWE0r+9LEU12iEU/MZSOmaDwvrYabc9IgsHa17SyZKi4g01 ZmYV4iJob9wX5xWe7PMSthayJQXpSsMtdSGrun6fgZof7xHS+M+9RKHua7HK8bOD sdBOOlB74fQT3snvcuFquIpIX/cQkwldYASLkUjAtuYZyNurJBoxfIrGZukqGEq/ 6wMEByOXb6yHlm1s+NlQg/wVQ0IXvXQ7IF+tC6195G8REmsdfphnFcLNubo4bopz CPcB+LK4iyQm3+ZOo0WhzS3BF2gR9v631T7sIvV8x+nnA40aJLLcnAOjfHkhK9fs F9AtvTE/TKMLk4TzyxhLJ0+QXn3Hr7t8CDfp5pkOeaOiF0ZoUr+AP+/29N3bdhc0 LMg+tUi64ZCgfYT/TJ9PXSla6PhfFhyrHt2Tx1BTtRXF34IZX7g74ELGH23fOATm KLDzOOKZJHPTvjIXyG6F9wx9ALrkQYVsY7uuB1TFoAHFIV0Ddlo= =rtUE -----END PGP SIGNATURE----- Reply to: debian-security-announce@lists.debian.org Alberto Garcia (on-list) Alberto Garcia (off-list) Prev by Date: [SECURITY] [DSA 6231-1] openjdk-21 security update Previous by thread: [SECURITY] [DSA 6231-1] openjdk-21 security update Index(es): Date Thread